92. Antonio Casolani, (1760 Italy - 1824), Government Account for Grand Master Hompesch, Account General of Military stores by the French, Apointed Auditor of accounts of Congress by Ball, Paymaster of the Government Treasury in 1800, (Left Siena for Malta in March 1777 age 16, arriving in Malta 8 June 1778).

The British-Maltese Nobility held that Fabrizio was the 2nd baron. The point is the British-Maltese Nobility had no right to change the historical record.

To avoid confusion, simply number the holders of the Testaferrata Primogenitura as Baron Testaferrata, starting from Ercole Martino as number 1, down the direct male line all the way to Salvino Testaferrata Moroni Viani as number 8.

In any case you just cannot say Pietro Paolo Testaferrata Abela (died 1827) was the 4th Baron, and then go on to withhold the title of the Testaferrata Moroni Viani family.

If you want you can style Pietro Paolo Testaferrata Abela (died 1827) as the “5th baron following the British-Maltese Nobility changes of 1882 - see also Beberrua and Cassar Desain)”.